WordPress — свободно распространяемая система управления содержимым сайта с открытым исходным кодом.

wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to upgrade the application, and possibly cause a denial of service (application outage), via a direct request.

Cross-site scripting (XSS) vulnerability in the WP-Cron Dashboard plugin 1.1.5 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the procname parameter to wp-admin/tools.php.

SQL injection vulnerability in dopbs-backend-forms.php in the Booking System (Booking Calendar) plugin before 1.3 for WordPress allows remote authenticated users to execute arbitrary SQL commands via the booking_form_id parameter to wp-admin/admin-ajax.php.

Cross-site scripting (XSS) vulnerability in post_alert.php in Alert Before Your Post plugin, possibly 0.1.1 and earlier, for WordPress allows remote attackers to inject arbitrary web script or HTML via the name parameter.

Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.

Before WordPress 4.9.5, the redirection URL for the login page was not validated or sanitized if forced to use HTTPS.

Cross-site scripting (XSS) vulnerability in wpcommentremix.php in WP Comment Remix plugin before 1.4.4 for WordPress allows remote attackers to inject arbitrary web script or HTML via the (1) replytotext, (2) quotetext, (3) originallypostedby, (4) sep, (5) maxtags, (6) tagsep, (7) tagheadersep, (8) taglabel, and (9) tagheaderlabel parameters.

In WordPress before 4.9.9 and 5.x before 5.0.1, crafted URLs could trigger XSS for certain use cases involving plugins.

In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.

Cross-site scripting (XSS) vulnerability in the BuddyPress plugin before 1.9.2 for WordPress allows remote authenticated users to inject arbitrary web script or HTML via the name field to groups/create/step/group-details. NOTE: this can be exploited without authentication by leveraging CVE-2014-1889.